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ext2: don't sync superblock on every allocation

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Matheus
2026-07-05 16:17:37 -03:00
parent 6ab3de6abd
commit cb3dfa45af
1 changed files with 7 additions and 2 deletions
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kernel-src/fs/ext2.c
+7 -2
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@@ -214,6 +214,11 @@ static const int vfstoext2typetable[] = {
static vops_t vnops;
static scache_t *nodecache;
static int writesuperblock(ext2fs_t *fs) {
size_t tmp;
return vfs_write(fs->backing, &fs->superblock, sizeof(ext2superblock_t), SUPERBLOCK_OFFSET, &tmp, 0);
}
static int syncsuperblock(ext2fs_t *fs) {
size_t tmp;
return vfs_write(fs->backing, &fs->superblock, sizeof(ext2superblock_t), SUPERBLOCK_OFFSET, &tmp, V_FFLAGS_NOCACHE);
@@ -339,7 +344,7 @@ static int allocatestructure(ext2fs_t *fs, uintmax_t *retid, bool inode) {
fs->superblock.unallocatedinodes -= 1;
else
fs->superblock.unallocatedblocks -= 1;
e = syncsuperblock(fs);
e = writesuperblock(fs);
MUTEX_RELEASE(&fs->superblocklock);
ASSERT_UNCLEAN(fs, e == 0);
@@ -415,7 +420,7 @@ static int freestructure(ext2fs_t *fs, uintmax_t id, bool inode) {
fs->superblock.unallocatedinodes += 1;
else
fs->superblock.unallocatedblocks += 1;
e = syncsuperblock(fs);
e = writesuperblock(fs);
MUTEX_RELEASE(&fs->superblocklock);
cleanup: